<%@ page contentType="text/html;charset=UTF-8" language="java" pageEncoding="UTF-8" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<center>
  <form action="" method="post">
    用户名：<input type="text" name="username" /><br>
    密码：<input type="password" name="pwd" /><br>
    <input type="submit" value="登录" />
  </form>
</center>
</body>
</html>
